{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["hyponym of", "used for", "compare"], "input": "Test performance data will show that a PCFG yields good results in morphological parsing ."}
{"hyponym of": [], "used for": [{"subject": "PCFG", "object": "morphological parsing"}], "compare": []}